It appears the described problem is similar to one that is reported in a separate support ticket. Below I will post the suggestions that I provided there:
If the problems you described are examined only under IE 10, they could be a result of the MicrosoftAjaxWebForms.js
failing to be included in the scripts for your page. In this sticky thread
you can find a detailed description of this issue and how to resolve it.
In case the problem happens in other browsers as well, it could be related to an error with loading the RadControls' scripts and skins from the WebSevice HTTP handler. You can check if this is causing the issues by enabling the Telerik CDN
, which will replace the web resource requests with plain string requests to the Telerik CDN provider.
Also, you can check if there are custom styles that are effecting the RadControls by overriding their default styles. To verify if this is the case you can temporarily remove the additional CSS styles from your page.
Please use a separate ticket/forum thread for every problem you want to report. This way the information on the case will be easier to track. Let us continue our discussion in the support ticket. You can post here the solution when the problem is resolved.
the Telerik team
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